I updated the Links table values (they were ok anyway):
Title - 3
CategoryID - 1
Description - 2

Then I re indexed and re built.

If you go to http://www.monografias.com/cgi-bin/search.cgi and search for "bases de datos" you´ll get no results.
If you replace the search url for search-ni.cgi, you´ll get -2 categories and 0 results.
Now, if you go to http://www.monografias.com/Computacion/General/ and use the browser´s page-search function for "bases de datos" you´ll find one at the bottom item. And also in the "next 10" page, and in many other descriptions.

How do you explain that?

In the same way, there are MANY different search queries that before switching to LinksSQL had many results, now have NONE.

Please help me pugdog.

Thank you.